#include "stm32f10x.h"
#include "stm32f10x_exti.h"
void exit_config(void)
{
	EXTI_InitTypeDef  EXTI_InitStructure;
	NVIC_InitTypeDef  NVIC_InitStructure;
	RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO, ENABLE);
	GPIO_EXTILineConfig(GPIO_PortSourceGPIOB,GPIO_PinSource12);
	GPIO_EXTILineConfig(GPIO_PortSourceGPIOB,GPIO_PinSource13);
	EXTI_InitStructure.EXTI_Line=EXTI_Line12|EXTI_Line13;
	EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
    EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling;
	EXTI_InitStructure.EXTI_LineCmd= ENABLE;
    EXTI_Init(&EXTI_InitStructure);
	NVIC_PriorityGroupConfig(NVIC_PriorityGroup_0);	
	NVIC_InitStructure.NVIC_IRQChannel= EXTI15_10_IRQn;
	NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority= 0x0;
	NVIC_InitStructure.NVIC_IRQChannelSubPriority= 0x0f;
	NVIC_InitStructure.NVIC_IRQChannelCmd= ENABLE;
	NVIC_Init(&NVIC_InitStructure);
}
